16805227 has 4 divisors (see below), whose sum is σ = 16813936. Its totient is φ = 16796520.

The previous prime is 16805221. The next prime is 16805251. The reversal of 16805227 is 72250861.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16805227 - 2³ = 16805219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16805221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24 + ... + 5797.

It is an arithmetic number, because the mean of its divisors is an integer number (4203484).

Almost surely, 2^16805227 is an apocalyptic number.

16805227 is a deficient number, since it is larger than the sum of its proper divisors (8709).

16805227 is an equidigital number, since it uses as much as digits as its factorization.

16805227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 16805227 is about 4099.4178855052. The cubic root of 16805227 is about 256.1423920976.

The spelling of 16805227 in words is "sixteen million, eight hundred five thousand, two hundred twenty-seven".